Duplex eyeleter.



F. L. HARMON.

DUPLEX EYELETEB. Awucmou FILED MAY 4. 19:4.

Patented Apr. 9,1918.

5 SHEETS-SHEET 1-.

F. L..-HARMON.

DUPLEX EYELETER. 7 APPLICATION FILED MAY 4. tan.

1 ,262,583. Patented Apr. 9, 1918.

5 SHEETS-SHEET 2.

I a" uerqru o m 2 4. ta @7021? Maw/a, yrz ew' 3y Patented Apr. 9, 1918.

b SHEETHIIEET 3.

-lll F- L. HARMUN. DUPLEX'EYELETER.

APPLICATION FILED MAY 4| I914. .5 Patented Apr; 9, 1918. s snznssnzsr 5.

[Alli/ll IIIIIIIIIII 'IIIIIIIIIIIIIIIIIIIIIIIIII llff 1 7 g 2 4 a UNITED STATES PATENT OFFICE.

FRANK L. -HARMON. OF BEVERLY. MASSACHUSETTS. ASSIGNOR TO SINGER MANU F AC- TUBING COMPANY, OF ELIZABETH.

NEW JERSEY. A CORPORATION OF NEW JERSEY.

DUPLEX EYELETER.

To all whom it may concern Be it known that I. FRANK L. I'IARMUX. a. citizen of the United States. and resident of Beverly. county of Essex. Commonwealth of Massachusetts. have invented an linprovement; in Duplex liyeleters. of which the following description. in connection with the accmupanying drawings. is a specification, like characters on the drawings representing like parts in each of the several "levs.

This invention relates. to duplex or double eyeleting machines of a type wherein the usual spindle-and-set mechani m i elimili nated. and in which the punches insert the eyelets into the holes. the material being fed for the eyelet spacing preferably by a lateral movement of the punches. to my invention I mount a telescopically 29 combined punch and set at each side of a material support preferably in opposite relation,.the two sides of the material support being formed and adapted to serve a punch block clenching surfaces. The operating parts-of each of the punch and set mechanisms at the respective sides of the material support are all on the same side of the support. whereby a great simplification of operating mechanism is made possible. l 10 believe that the present duplex machine i the first of this type in which a telescopi-- cally combined punch and set disposed in up posite or duplex relations i employed: also that- I am the lirst to dispense with the usual 85 sets having spindles therein. in such a do plex machine. It will be understood that there is a great advantage in doing away with the spindles and sets together with the necessary operating mechanism therefor,

I since such operating mechanism in a duplex machine is necessarily relatively complex and involved. I believe that any employment of sets: with telescopic punches therein in conjunction with an eyelet spacing feed '15 of the material is within the spirit of the present invention as hereinafter developed. According to a further feature of the invention the punches and sets are mounted for rectilinear movement both for feeding and for their operative strokes. instead of in a curved line as has been usual heretofore. this contributing materially to rapid and accurate guiding of the work. A further future has todo with an improved. mount- 5 of the punches and sets whereby they Specification of Letters Patent.

According.

Patented Apr. 9, 1918. Serial No. 836.324.

are all carried and held in correct alincuu-nt y a single mounting element: this insuring that the spacing of the eyelets in one piece of material shall be exactly the same as in the other being operated on. further feature has to do with an improved construction of punch telescopically combined with a hollow set and adjusting provision therefor. A. still further feature has to do with an improved mechanism for supplying eye lets from a hopper in two race-ways withthe heads of the eyelets in the two race-way lines facing oppositely. still further object has to do with an adjustment of the delivery ends of the race\\'a vs for delivering tlitfercnt sized eyelets. The above and other objects and features of-the invention will be better understood from the following detailed description taken in connection with the accompanying drawings andwill bc thereafter pointed out in the appended claims.

l-let'erring to the drawing Figure l is a side elevation of a machine cruistructed in accordance with my invention:

.Fig. 2 a plan view thereof looking in the direction of arrow 2 in Fig. 1:

Fig. 3 is afront view looking in the direction of arrow 3 in Fig. l with the base 'lit'tllit-ll away:

Fig. l is a perspective sh wing the cone tnou carrier of the punches and sets and the race-ways. detached from the rest of the machine:

Fig. is: an elevation of the eyelet supply hopper with toiipet'atii parts broken away:

Fig. U is a sectional detail showing a connection for effecting the transverse move ment of the punches and sets:

Fig. 7 an enlarged detail partly in section and partly in elevation of the immediate working parts of the machine;

Fig. 5 l: a fragmentary sectional detail showing a delivery portion of the eyelet hopper and a part of the race-waysr Fig. J is a transversesection through the eyelet hopper;

Fig. 10 is aiplan view of the eyelet hopper with the cover removed and a part broken away; and I f Fig. 11 a. fragmentz try elevation of the delivery portion of an eyelet chute.

The base support lof the machine hasan upstanding pedestal 2 which is equipped 4 for the operating shaft 5" of the machine, this shaft being shown as driven by a suitable belt pulley 6 with a usual stop device 7 associated therewith.v The pedestal'support 2 has a forwardly and downwardly projected extension 8 in which is formed a slide way 9 for a slide block member 10 which carries the punches and sets as presently described. At the to p'and' front of the base extension 8 is fixdas at 11 a material support 12 in the form of aheavy plate bent upwardly and then at right angles forwardly and downwardly as shown. At each side of this plate are adjustably ,fixed at 13 spring, presser' plates 14 adapted to press the material against the support as it is punched and e'yeleted, and fed along.-

The slide block member 10 which receives periodic endwise movement as resently described has a lower transverse y projecting arm 15 carrying the lower punch and set mechanism 16 and it bears over this arni 15 another transversely projecting arm 17 in which is fitted the u )per punch and set mechanism 18 arranger opposite the punch and set 16. Referring now to the particular construction of the punch and set mecha nisms. both of these being alike, the end of the arms in which they are mounted are formed with bores 19 having inturned flanges 20 at ther inner ends. Ineachof these bores is slidably fitted a tubular head 21 having an intermediate shoulder against which presses a spring 22 which reacts against the flange 20 thus keepin the head normally vdrawn outward. The inner end of the head 21 is internally threaded to receive the externally threaded body of the set 23 which. may thus be adjustably fitted to said head .and then locked in adjusted position by a lock nut 24. The punch 25 is hollow and slidably fitted through the set 23 with an extension'reaching 11 through the body 21 'in which its upper end is guided. An intermediate )ortion of this punch extension is formed with a flange 26 upon which presses a spring 27 reacting against a ledge at the top of the bodv 2110 )roject the punchnotw mally outward from t 1e set to operative po' sition. The-extent to which it may thus be projected is adjustably limited by a stop nut 28 threaded on the inside of body 21. Thus the punch and setltogether areheld vieldingly retracted bv the spring 22 while the punehis held yie dingly pro ected from the set by the spring 27, it being noted that in this position the back of the much is flush with'the-back of the body 21. 0th these being preferably rounded as indicated at 29. Means is provided for forcing the punch and set forward for the punching and setting operations, and for this purpose I show an upper lever 30 fulcrurned at 31 an extension 32 of the base for acting on the'up er with bearings '65 punch and {set and a lower lever- 33 lilar operatin fixed on the sha I and set movements. The inner ends of the to an elongated slot therein .ehch of these rolls being messes.

crumed at 34 in the base for acting on the lower punch and set. These levers have simfaces 35 adapted to engage the' outer ends of the punches and set bodies, and each lever carries at a distance inward from its fulcrum a roll 36 adjustably fitted as seen at 37, adapted to ride air ofslmil'ar cams 38, 39 5 for controlling the punch upon one of a levers are yieldingly drawn together to hold the rollers 36 against their respective cams. by a coil spring/i0 secured at its two endsto' the respective leverswith' a threaded adjuster 41 at one end. Since the cams 38. 39 are similar and oppositely disposed to actuate the respective levers a description of one of them-will suffice for both. The cam 38 in the position shown is presenting its lowest portion 38' to the roll 36. Thence as it turns in the directionof the arrow a gradual rise 38" causes the punch to descend .till its flange rests against thesct ther rise 38 in the cam then moves t picking an eyelet e from the forward end of a race way. 42 more particularly described later and slipping the eyelet over the punch as. the punch descends upon the material. A fur- I he punch to force it through the material against the punch block surface of material support 12. Thereupon the cam continues with a slight step down as indicated at 38 in a concentric portion 58 of a substantial arc. this slightly lowered )ortion relievingthe punch from the punch block surface but not moving'it u back enough to move it out of the material.

ing surface 43 w In this interval the punches and sets are simultaneously moved laterally to feed the material and space the eyelets as presently described, bringing the set oppositethe clenchhich may-be formed as'an annular concave groove suitable for turning out the lower flange of the eyelet and clenching it against the stock. Thereupon a final rise 38 in the cam moves the set downward for clenching the eyelet. the punch at this time telesco )ing'within the set as now to be described. 'ihe cam then returns to its lower.- mostportion 38 which continues concentric 1151 throu h' a considerable arc durin .which time t 1e punch and set are returned laterally to initial position after beingraised clear of the work and above the eyeletrace way.

The corresponding parts of cam 39 being correspondingly designated on the drawings the operation therepf on the lower punch andset will be'readlly understood. For if fect-mgtheendwise movement of the slide block 10 to move the punches and sets laterinner end engaged with a link 48, the other 130.

spacing of the eyelets as effected by the lat-,

eral movement of the punches while engaged in the material. It will be understood that the formation of lateral cam it is such as to move the punches laterally for feeding while they are under the action of the portions 38 and 39* of the respective peripheral cams and to permit return of the punches to initial position while the portions 3-5 and 39 of the peripheral cams are acti e. This lateral return of the punches to initial position ietl'ectcd by a stout coil Spring 5% engaged with a pin .35 on the block 10 at one end and with a pin 56 on the frame work at its other end. It will he understood that as the punch and set mecln'tnisms are thus moved laterally: they slide along the faces 35 of the levers respectively which are made wide enough to permit this lateral move ment. Referring especially to Fig. 7 it will h noted that the ends of these levers at the sides that will engage the punch and set mechanisms for the setting Wttion are recessed as seenat 5i, these'recesses being deep enough'to permit the punches to recede or telescope within the sets as the sets operate. and not wide enough to permit the body of the set to recede thereinto as the levers are moved to press the sets forward to clench the. eyelets.

The it met and lower eyelet race ways 42 are similar but oppositely disposed so as to present the eyelets pro )erly to the material at the opposite sides 0 the support. These race ways are adapted to deliver eyelets of widely varying sizes and hold them pro erly alined to be 'aught by the punches and for this purpose I provide an extension to the main race way portions 58 consisting inlateral portions 59, 60 pivoted to the main portions at 61 and adapted to be simultaneously adjusted toward or from each other by a screw (12 which has its two end portions oppositely threaded and engaged with nuts 63 on therespective lateral portions of t-he'race way. Thus bymerely turning this screw the delivery portion of the race war." may be adju tedto'any width required. The race ways -l2 'ure earr'iettin the slide block 10 as best shown in igQj-t, being guided for endwise sliding'inov-ement therein andheld in place hr retaining plate 64. These race ways ai diii hopper 65 which supplies the eyelets" thereto are moved so as to ring-the foremost eyelets into alinement with the punches at the proper intervals and then move back out of the way for the setting operation. and for this purpose I show a cam 66 fixedon the shaft 5 and engaging :1 depending abutment member 6? on the race ways. As a means for starting the evelets in the respec tive race ways so that they will face in opposite directions as required I provide a plate ["18 intermediate the height ofthe l1op-' per with a groove 69 therein and leading to the upper race way. this groove being of awidth to permit the shanks of the eyelets to' drop thereinto and the eyelets rest on their flanges to slide out along the race way. The lowet raceway leads out from the bottom of the hopper with spaced apart guides '10 so as to permit the upstanding shanks to slide thtaealong as they rest on their flanges. I1. will he understood that the nmss of eyelets in the hopper is agitated by the reciprocating lateral movement imparted from the slide block 10 to the raceways which support the hopper, and this agitation is promoted by the operation of the canr iti which reciprocates the raceways endwise and of course the hopperalong with them. In addition to this a suitable brush device (not shown) may be employed in the hopper to be moved for stirring up. the eyelets to start them in their respective raceways.

While the members 30, have been referred to as levers, for convenience in con struction and assemblage, each of these members is shown as formed of separate lever arms spaced tlfillt laterally and fixed to a shaft; thus what has been called the lever 30 is made up of the arms 30*, 30* fixed at the respective ends of a shaft 30 journaled at; the fulcrum point 31.

The operation of the described mechanism will be understood from the foregoing description and needs to he only briefly sum marized: The two pieces ofv material being supplied to the opposite sides of the material support 12 underneath .the presser plates 14, the operation of the machine causes the two punches to be pressed forward simulta neously while held positively projected from the sets, the initial part of their movementbeing relatively slow. In this movement each of the punches takesup the foremost eyelet from its raceway and as the 'raceways mov e back out of the way and the punches continue to move forward, the eyelets slip .respective sets. Then .the. punches being slightly moved back so as to be relieved from the punch block surfaces the lateral cam 14 comes. into'action to move the punchesand setslaterally the distance the' eyelets are to be spaced, 2'. 0., from some variable initial position to a position opposite the clenching surfaces 43, this variable initial position being determined by the adjustment of pin 50 in the slot 51. The contour and arrangement of the elongated slot 51 is such that it compensates for the varying in the positions of the punch. and set mechanisms relative to the clenching surfaces 43 that would otherwise occur byadjustment of the pin 50 in said slot, so that notwithstanding such adjustment the punch and set-mechanisms always come to rest in operative position opposite the clenching surfaces 43.

This lateral shifting of the punch and set mechanisms brings the set bodies opposite the recesses 57 in the lever faces Thereupon a further movement of the levers 30, 33 under the action of the portions 38, 30 of their respective cams moves the sets farther forward to effect the clenching of the eyelets, the punches as this occurs receding within the sets, since their rear ends may move back into the recesses 5? which are too small to receive the set bodies 21. Then the punch and set mechanisms being permitted to move out of the material and back of the raceways by the lower portions of the cams and being returned to initial lat eral position by the spring 54, the cycle of operation is completed. It will be noted that the sets 23 are conveniently adjustable in the setbo dies b their threaded engagementtherewithto 'e locked by the nuts 24 so that they may be set accurately according to the requirements of the particular work in hand. and the normal forward projection of the punches as yieldingly held forward can also be determined by adjustment of the 'nut'28. A further means whereby the operating movements of the punch and set mechanisms can be varied as required is provided by the elongated slots 37 which permit an adjustment of-the rolls 36 toward and from the fulcrums of their respctive levers. It is to be especially noted that in' my improved construction the punch and set mechanisms are held accurately alined and guided'both for their rectilinear lateral movements as they are carried transversely by the movement of the block 10, and also for their operative in and out movement as guided in the arms 15. 17. of said block. the rectilinear spacing movement thus provided bein an important aid in permitting the guidln of the work rapidly and easily. I am aware that the invention can be embodied in other specific forms as to its various features without departing from the spirit thereof and I therefore desire the present embodiment to be considered as illustrative and not restrictive referrin 'ather to the appended claims to indicate t ie scope thereof.

and set mechanisms mounted opposite each.

other, a material support equipped with punch block and clenching surfaces at its two sides mounted between said punch and set mechanisms, means for first moving said punches simultaneously to punch the material and thereafter moving the sets simultaneously to clench the eyelets, and means for moving the punches laterally while engaged in the material to feed the same and space the eyelets.

'2. A duplex eyeleting machine, comprising a material support equipped with punch block and clenching surfaces on opposite sides. a plurality of telescopically combined punch and set mechanisms mounted to act against the opposite sides of said material support. mechanism for moving the punches forward to punch the material and thereafter moving the sets, forward to clench the eyelets. and means for moving the punches laterally together while in the material to feed the same and space the eyelets.

3. A duplex eyeleting machine, comprising a material support having punch block and clenchin surfaces on its opposite sides a plurality of telescopically combined punch and set mechanisms mounted to operate on the opposite sides of said material support, a single actuating mechanism for operating said punch and set mechanisms to first punch the material and thereafter clench the eyelets, and a single actuating means for moving the punches laterally while in the material to feed the same and space the eyelets.

l. A duplex eyeleting machine, comprising material supporting means having punch block and clenching surfaces on opposite sides thereof, a plurality of telescopically combined punch and set mechanisms, a common mounting therefor holding said mechanisms in opposite relatlon. means for operating said mechanisms simultaneously to first punch the materials and thereafter clench the punches are in the material to space the eyelets.

5. A duplex eyeleting machine, comprising stationary means for supporting material having punch block and clenchmgsurfaces at opposite sides, a air of telescopically combined punch and set mechanisms oppositely mounted in operative relation to said material supporting means, means for operating said mechanisms to first punchholes in the materials and thereafter clench the eyelets, a pair of eyelet raceways adapted to feed linesof eyelets with the two lines 1,aea,ssa

facing oppositely to a position where the foremost ones are .taken on by thepunches as they move forward, and means for movmg the sets forward to clench the eyelets,

means for feeding a line of eyelets in operative relation to each of said punches, and

means' formoving said punch and set mechanismlaterally between eyeleti-n operations tofeed the material-and space he eyelets.

7, A duplex eyeleting machine, compris' ing a pairof telescopically combined punch and set mechanisms, a common mounting for holding said mechanisms to move toward andfrom each other, a stationary material support between said mechanisms, means for operating said mechanisms to punch the matcrialsand'thereafter clench the eyelets, and

means for moving said mounting laterally bet-Ween'eyeleting operations by a predetermined variable amount to slide the material over said support and space the eyelets, said mounting having provision to 1 engage the material for effecting said sliding movement.

8. A duplex eyeleting' machine. comprising means for supportin material equipped with punch block and cl enching surfaces at its opposite sides, apluralit v of oppositely disposed telesco ically combined punch and set mechanisms or cooperating with said material supporting means, mechanism for imparting punching and clenchin movements to the punch and set portions c said mechanisms in succession respectively, a common mounting for said punch and set mechamsms oq'l'tlppedwith means for reciprocatit,."la.t'erally to feed the material. and

eyelet raceways for the respective punch and; set mechanisms slidably carried in said mountin and movable laterally therewith.

9.11 uplex eyeleting machine, comprising a material support, a plurality of oppositely disposed punch and set mechanisms, at common mounting for said mechanisms fitted to reciprocate in a base support. means for, operating said punch and set mechan sms, and means ,for'reclprocating said ,mountingin timed relation thereto for feeding the material to space the eyelets.

"10. A du lex eyeletingmachine, comprising a plum ity of oppositely disposed punch and set mechanisms, a material support disposed therebetwecn, a'comm'o'n mounting for said mechanisms fitted. to slide in a base support. means for operatlng said mechanisms. means for laterally reclprocating said mounting in timed relation to the operation of said mechanisms for feeding thematerlal, eyelet raceways fitted in said mounting to partake of the lateral reciprocation thereof,

andv means for moving said raceways endwise in timed relation to the movements of the punch and set mechanisms for supplying eyelets.

a 11. A duplex eyeletin machine, comprising'a plurality of oppos tely disposed'punch and set mechanisms, amaterial supportdis- I posed therebetween, a common mounting for said mechanisnls fitted to slide in a direction transverse thereof, a raceway for each of said punch and set mechanisms fitted to said mounting .to move therewith and also to slide in a direction transverse thereof, means for operating said punch and set mechanisms. means for operating said mounting in timed relation thereto. and means for reciprocating said raccways.

.12. An eyeleting machine. comprising a material support equipped with a punch block and a clenching surface. a telescopically combined punch and set mounted to coiil'icrate with said support. a mounting for said punch and set mechanism having means to move the same laterally at intervals for spacing the eyelets. and means for operating said punch and set mechanism, said means consisting in a presser head mounted and connected. to reciprocate against the hack of thepunch and set. said head having one portion adapted to serve as a backing to press the punch forward for punching and another portion adapted to'permit the punch to retilde relative to the set while pressing the set forward to clench the e ve lets.

1 An eveleting machine. comprising a the punch and set. said head having one por-' tion adapted to serve as a backing to press the punch forward for punching and another portlon formed with a recess adapted to permit the punch to recede relative to theset while pressing the set forward for clenching the eyelets.

1 In an eyeleting machine, a telescopically combined unch and set consisting in a hollow set ha y having a punch slidably fitted therein with means for holding the unch 'nornial ly projected, the set roper l'poted, and means adjustable int-he set for aving threaded connection with t 6 set uniting the forward projection of the body wherebl it may be adjusted relative punch.

thereto for t e purpose stated, and means In testimony whereof,I have-signed my 5 for lockin the set roper invariable ad-r name to thig specification, in the presence '15 justed osltions relatlve to the set body. of two subscribmlg witnesses.

15. n an e eleting machine a telescopi RANK L. HARMON.

c'aLll combine punch a'ndset consisting in a g Witnesses:

hol ow st a unch fitteH to slidatheroin; Guam L. Rooms,

1 means forhol ing the punch vieldinglv mo- 'Lomsn A. JORDAN, 

